Compact 77.5:1 geared servo with 12-bit absolute encoder, TTL multidrop bus and DYNAMIXEL Protocol 2.0 control table
Motion & Actuation · Networked smart servo actuator
XL330-M077-T
The exact six-unit DYNAMIXEL LeKiwi leader-arm actuator identity. Its official e-Manual publishes voltage-conditioned stall torque and no-load speed while leaving continuous thermal output and robot-level validation unknown.
ROBOTIS DYNAMIXEL XL330-M077-T · Also: DYNAMIXEL XL330-M077-T, XL330-M077
11 known suppliers in this product family.
Motor, reduction, feedback and drive electronics sold as an integrated or near-integrated robot-joint product. The list is bounded to the current RCI manufacturer-directory universe and separates exact-model audited suppliers from confirmed product-line suppliers.
EXACT-MODEL AUDITED
8 suppliers
HEBI Robotics · ROBOTIS · CubeMars · MYACTUATOR · Unitree Robotics · mjbots · FEETECH · Damiao
PRODUCT-LINE CONFIRMED
3 suppliers
INNFOS · MAB Robotics · Synapticon
This is a bounded discovery set, not a claim to enumerate every company worldwide. Open the full supplier landscape and official routes →
What this record can support today.
Coverage is computed from published, non-unknown fields. It measures the record—not product quality—and makes missing procurement evidence explicit.
Engineering field coverage73%
8 of 11 selected fields published
- Official product sourcepublished
- Lifecycle statepublished
- Mechanical dimensions / mass / mountingpublished
- Environmental operating limitspublished
- Continuous or rated outputunknown
- Peak / momentary outputmissing
- Speed boundarypublished
- Transmission ratio / errorpublished
- Electrical input / consumptionpublished
- Control and communication interfacemissing
- Position / torque feedbackpublished
Procurement field coverage15%
2 of 13 selected fields published
- Official product / sales routepublished
- Lifecycle statepublished
- Exact orderable SKU / part numbermissing
- Price with region, currency and quantitymissing
- Lead time with check datemissing
- Commercial availability / stock statemissing
- Minimum order quantitymissing
- Authorized distributor / sales channelmissing
- CAD / STEP / interface drawingmissing
- Certification with identifiermissing
- MTBF / failure / reliability datamissing
- Warranty termsmissing
- PCN / EOL / replacement noticemissing
Coverage measures whether a selected public field is present with non-U evidence. It is not a product score, compatibility result, certification, availability confirmation or procurement recommendation. Download the complete readiness coverage JSON →
Exact-model responsibility-party BOM crosswalk.
This edge requires a pinned robot BOM identity and an exact RCI component record. It remains separate from as-built inspection, compatibility and performance evidence.
Robot BOM → exact component
DYNAMIXEL LeKiwi mobile manipulator
The pinned DYNAMIXEL LeKiwi responsibility-party BOM names Dynamixel XL330-M077-T, links the ROBOTIS product and publishes quantity 6 in the Leader Arm section. The RCI component catalog independently represents the exact M077 gearing suffix from the official ROBOTIS e-Manual.
Published quantity: 6. Six units are published for the selected leader-arm row. The row is not merged with the M288 follower-arm identity, and RCI does not extrapolate the quantity to other LeKiwi configurations.
Boundary: This crosswalk proves one pinned responsibility-party BOM row and one exact RCI component record refer to XL330-M077-T. It does not prove installed serials, current supply, compatibility, continuous torque, allowable stall operation, endorsement or an RCI hardware test.
1 bounded physical-evidence record.
Publisher independence, identity precision and measurement scope vary by row. Results remain bounded by the disclosed specimen, setup, workload and metric; an inconclusive mapping is evidence associated with the catalog model, not verification of a manufacturer claim.
| Measured result | Conditions | Claim mapping | Source |
|---|---|---|---|
| Independent real-system experimentindependent_physical_evidence | Exact actuator used as the trigger axis on a physical teleoperation leader armTACTIC leader arm; trigger actuation controlled real data-collection start and end events. | inconclusiveThe record establishes bounded physical evidence for the named model, but the experiment does not reproduce the catalogued claim metric and conditions; the claim remains inconclusive. | TACTIC Open Hardware — Leader Arm ↗Leader-arm overview and bill of materials Checked 2026-08-26 |
Reported values, conditions attached.
Evidence state describes the claim—not the prestige of the company or document.
| Claim | Reported value | Condition / boundary | State | Source |
|---|---|---|---|---|
| Microcontrollermcu | 32-bit ARM Cortex-M0+ at 64 MHz | Manufacturer specification. | M · Manufacturer claimed | ROBOTIS XL330-M077-T e-Manual ↗Specifications, performance graph note, communication and connector reference · Live e-Manual observed 2026-08-13 Checked 2026-08-13 |
| Position sensorencoder | AS5601 contactless absolute encoder, 12-bit over 360° | Manufacturer specification. | M · Manufacturer claimed | ROBOTIS XL330-M077-T e-Manual ↗Specifications, performance graph note, communication and connector reference · Live e-Manual observed 2026-08-13 Checked 2026-08-13 |
| Baud-rate rangebaud_rate | 9,600 bps–4 Mbps | TTL half-duplex asynchronous serial link. | M · Manufacturer claimed | ROBOTIS XL330-M077-T e-Manual ↗Specifications, performance graph note, communication and connector reference · Live e-Manual observed 2026-08-13 Checked 2026-08-13 |
| Position resolutionresolution | 4096 pulse/rev | Manufacturer specification. | M · Manufacturer claimed | ROBOTIS XL330-M077-T e-Manual ↗Specifications, performance graph note, communication and connector reference · Live e-Manual observed 2026-08-13 Checked 2026-08-13 |
| Operating modesoperating_modes | Current control; velocity; position; extended-position; current-based position; PWM | Mode availability follows the published control table and firmware boundary. | M · Manufacturer claimed | ROBOTIS XL330-M077-T e-Manual ↗Specifications, performance graph note, communication and connector reference · Live e-Manual observed 2026-08-13 Checked 2026-08-13 |
| Massmass | 18 g | Actuator body; brackets, idlers and cables are not included. | M · Manufacturer claimed | ROBOTIS XL330-M077-T e-Manual ↗Specifications, performance graph note, communication and connector reference · Live e-Manual observed 2026-08-13 Checked 2026-08-13 |
| Dimensionsdimensions | 20 × 34 × 26 mm | Width × height × depth. | M · Manufacturer claimed | ROBOTIS XL330-M077-T e-Manual ↗Specifications, performance graph note, communication and connector reference · Live e-Manual observed 2026-08-13 Checked 2026-08-13 |
| Gear ratiogear_ratio | 77.5:1 | Manufacturer specification for this exact gearing suffix. | M · Manufacturer claimed | ROBOTIS XL330-M077-T e-Manual ↗Specifications, performance graph note, communication and connector reference · Live e-Manual observed 2026-08-13 Checked 2026-08-13 |
| Stall-torque referencesheadline_torque | 0.180 N·m at 3.7 V / 1.11 A; 0.215 N·m at 5.0 V / 1.47 A; 0.228 N·m at 6.0 V / 1.74 A | Momentary stall references only. The official note distinguishes stall torque from continuous output and expected real-world performance. | M · Manufacturer claimed | ROBOTIS XL330-M077-T e-Manual ↗Specifications, performance graph note, communication and connector reference · Live e-Manual observed 2026-08-13 Checked 2026-08-13 |
| No-load-speed referencesspeed | 278 rpm at 3.7 V; 383 rpm at 5.0 V; 456 rpm at 6.0 V | No-load values; they are not loaded operating points. | M · Manufacturer claimed | ROBOTIS XL330-M077-T e-Manual ↗Specifications, performance graph note, communication and connector reference · Live e-Manual observed 2026-08-13 Checked 2026-08-13 |
| Operating temperatureoperating_temperature | −5 to +72 °C | Published device range; no duty-cycle envelope is implied. | M · Manufacturer claimed | ROBOTIS XL330-M077-T e-Manual ↗Specifications, performance graph note, communication and connector reference · Live e-Manual observed 2026-08-13 Checked 2026-08-13 |
| Input voltageinput_voltage | 3.7–6.0; 5.0 recommended V | The selected voltage governs the matching current, stall-torque and no-load-speed references. | M · Manufacturer claimed | ROBOTIS XL330-M077-T e-Manual ↗Specifications, performance graph note, communication and connector reference · Live e-Manual observed 2026-08-13 Checked 2026-08-13 |
| Physical communicationcommunications | 3.3 V TTL multidrop, 5 V tolerant; half-duplex asynchronous serial; DYNAMIXEL Protocol 2.0 | Protocol/register and firmware compatibility remain separate integration boundaries. | M · Manufacturer claimed | ROBOTIS XL330-M077-T e-Manual ↗Specifications, performance graph note, communication and connector reference · Live e-Manual observed 2026-08-13 Checked 2026-08-13 |
| Continuous or thermally rated output torquecontinuous_torque | Not published in cited public evidence | RCI checked the cited official e-Manual on the verification date.The cited e-Manual publishes stall and performance-graph references but no continuous/thermally rated torque envelope or duty-cycle limit. | U · Unknown | ROBOTIS XL330-M077-T e-Manual ↗Specifications, performance graph note, communication and connector reference · Live e-Manual observed 2026-08-13 Checked 2026-08-13 |
| Independent exact-actuator robot validationindependent_robot_validation | Not published in cited public evidence | RCI checked the cited official e-Manual on the verification date.The selected LeKiwi BOM identity is a responsibility-party publication, not an RCI bench test, serialised-unit inspection or independent robot validation. | U · Unknown | ROBOTIS XL330-M077-T e-Manual ↗Specifications, performance graph note, communication and connector reference · Live e-Manual observed 2026-08-13 Checked 2026-08-13 |
Known limits
What this record does not prove.
- The 0.180–0.228 N·m values are stall references, not continuous ratings or allowable stall operating points.
- The public record does not provide a thermally conditioned continuous-torque envelope or duty-cycle limit.
- The six-unit LeKiwi crosswalk proves a pinned source identity and row quantity, not serials, every build, current supply, compatibility, endorsement or RCI hardware validation.